Dolomedes tenebrosus
(Dark Fishing Spider)

Picture ID 56225

Picture of Dolomedes tenebrosus (Dark Fishing Spider) - Dorsal

Comments & ID Thoughts

I found this beast at the top of the basement wall. In fact this is the second one. It is 3-4 inches across. I don't know what it is but my guess is it's a Wolf spider. Should I kill it? The first one I let room free in the finished part of the basement until I found him upstairs the next day. Not cool. This fella is hunting in the unfinished side.

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BugmanDanTghSpider Recent comment authors
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BugmanDan
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Hi. This is one of the nursery web spiders, Dolomedes genus(fishing spiders) Dolomedes tenebrosus species.
Called dark fishing spiders.
Their size can intimidate many not used to them, but they are quite harmless and gentle giants, just quick if spooked, not aggressive unless protecting eggs or young.
https://bugguide.net/node/view/2011
I would just let her stay, trying to catch these is easiest by hand and a good challenge:
http://www.youtube.com/watch?v=14KGY6G7Jjo

Additional Pictures

Picture of Dolomedes tenebrosus (Dark Fishing Spider) - Dorsal Enlarge Picture
Picture of Dolomedes tenebrosus (Dark Fishing Spider) - Dorsal Enlarge Picture
Picture of Dolomedes tenebrosus (Dark Fishing Spider) - Dorsal Enlarge Picture
Picture of Dolomedes tenebrosus (Dark Fishing Spider) - Dorsal Enlarge Picture